<template>
    <el-dropdown @command="handleSetSize" trigger="click">
        <div>
            <svg-icon class-name="size-icon" icon-class="size"/>
        </div>
        <el-dropdown-menu slot="dropdown">
            <el-dropdown-item :command="item.value" :disabled="size===item.value" :key="item.value"
                              v-for="item of sizeOptions">
                {{item.label}}
            </el-dropdown-item>
        </el-dropdown-menu>
    </el-dropdown>
</template>

<script>
  export default {
    data() {
      return {
        sizeOptions: [
          { label: 'Default', value: 'default' },
          { label: 'Medium', value: 'medium' },
          { label: 'Small', value: 'small' },
          { label: 'Mini', value: 'mini' }
        ]
      }
    },
    computed: {
      size() {
        return this.$store.getters.size
      }
    },
    methods: {
      handleSetSize(size) {
        this.$ELEMENT.size = size
        this.$store.dispatch('app/setSize', size)
        this.refreshView()
        this.$message({
          message: '组件大小切换成功',
          type: 'success'
        })
      },
      refreshView() {
        // In order to make the cached page re-rendered
        // this.$store.dispatch('tagsView/delAllCachedViews', this.$route)

        const { fullPath } = this.$route
        this.$nextTick(() => {
          this.$router.replace({
            path: '/redirect' + fullPath
          })
        })
      }
    }

  }
</script>
